package com.sky.controller.admin;

import com.github.pagehelper.PageHelper;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * 菜品管理
 */
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController
{
    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;
    /**
     * 添加菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO)
    {
        dishService.saveWithFlavor(dishDTO);
        cleanCache("*dish_"+dishDTO.getCategoryId());
        return Result.success();
    }

    /**
     * 菜品分页查询
     */
    @GetMapping("/page")
    @ApiOperation(value="菜品分页查询")
    public Result<PageResult> pageQuery(DishPageQueryDTO dishPageQueryDTO)
    {

        PageResult pageResult=dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 菜品起售、停售
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation(value = "菜品停售、起售")
    public Result startOrstop(@PathVariable Integer status,long id)
    {
        dishService.startOrstop(status,id);
        cleanCache("*dish_*");
        return Result.success();
    }

    /**
     * 根据id查询菜品信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation(value = "根据id查询菜品")
    public Result<DishVO> getById(@PathVariable long id)
    {
        DishVO dish=dishService.getByIdWithFlavor(id);
        return Result.success(dish);
    }

    /**
     * 根据分类id查询菜品信息
     * @return
     */
    @GetMapping("/list")
    @ApiOperation(value = "根据分类id查询菜品们的信息")
    public Result<List<Dish>> getByCategoryId(DishDTO dishDTO)
    {
        List<Dish> dishes=dishService.getByCategoryId(dishDTO.getCategoryId());
        return Result.success(dishes);
    }
    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation(value = "修改菜品")
    public Result update(@RequestBody DishDTO dishDTO)
    {
        dishService.updateWithFlavor(dishDTO);
        cleanCache("*dish_*");
        return Result.success();
    }

    /**
     * 批量删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation(value = "批量删除菜品")
    public Result delete(@RequestParam List<Long> ids)
    {
        dishService.deleteBatch(ids);

        //直接清理所有的key
        cleanCache("*dish_*");
        return Result.success();
    }

    /**
     * 清理缓存数据
     * @param pattern
     */
    private void cleanCache(String pattern)
    {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
